three times the sum of a number and 9 is 6

Answer 1

For this problem we want to set up an equation.

We need to look at it piece by piece to make sure we set it up correctly.

Three times the sum of a number and 9 is 6.

The is tells us that 6 is the answer.

The sum tells us this part comes before we multiply.

Now we can write our equation.

3(x+9)=6 where x is the unknown number

Now we can solve for x.

3(x+9)=6 (original equation)

3x+27=6 (distribute)

3x=-21 (subtract 27 from both sides)

x=-7 (divide both sides by 3)

So our answer is -7.

Hope this helps!